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pcm:mmap_emul: Fix sw_params and others in bypass mode

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When the slave doesn't need any mmap-emulation, the plugin shouldn't do
anything special in sw_params and other callbacks but just pass to the
generic helpers and update hwptr and applptr.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-11-14 17:02:40 +01:00
parent 15c6f83296
commit f562b032be
1 changed files with 5 additions and 5 deletions
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10
src/pcm/pcm_mmap_emul.c
View file

@ -212,6 +212,9 @@ static int snd_pcm_mmap_emul_sw_params(snd_pcm_t *pcm,
mmap_emul_t *map = pcm->private_data;
int err;
if (!map->mmap_emul)
return snd_pcm_generic_sw_params(pcm, params);
map->start_threshold = params->start_threshold;
/* HACK: don't auto-start in the slave PCM */
@ -317,9 +320,9 @@ snd_pcm_mmap_emul_mmap_commit(snd_pcm_t *pcm, snd_pcm_uframes_t offset,
mmap_emul_t *map = pcm->private_data;
snd_pcm_t *slave = map->gen.slave;
snd_pcm_mmap_appl_forward(pcm, size);
if (!map->mmap_emul)
return snd_pcm_mmap_commit(slave, offset, size);
snd_pcm_mmap_appl_forward(pcm, size);
if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
sync_slave_write(pcm);
return size;
@ -332,10 +335,7 @@ static snd_pcm_sframes_t snd_pcm_mmap_emul_avail_update(snd_pcm_t *pcm)
snd_pcm_sframes_t avail;
avail = snd_pcm_avail_update(slave);
if (!map->mmap_emul)
return avail;
if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
if (!map->mmap_emul || pcm->stream == SND_PCM_STREAM_PLAYBACK)
map->hw_ptr = *slave->hw.ptr;
else
sync_slave_read(pcm);